BUSINESS EFFICIENCY
RAPID PROTOTYPING

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RTV Molding

A part is molded in a silicone surrounding to reproduce up to twenty urethane parts that are specified to color and property. The casting material can be urethanes of various properties, rubber or wax. Often called urethane casting, the RTV molding process has been used to create models that put the "function" in the RP industry's phrase "fit, form and function." People have been using RTV molding (room temperature vulcanization or silicone rubber molding) for years to fill the void between prototype and production. RTV molding is an effective and inexpensive way to create multiple copies of a master prototype part. The resulting copies are cast using polyurethane, silicone or wax. Silicone molds are capable of reproducing remarkable detail, and because of the flexibility of silicone, draft angles, inserts, and undercuts are not as critical as in other molding processes. In recent years, there has been vast improvement in urethane casting technology. RTV is very helpful when you need a spec-like material for multiple sets, in a short timeframe, for less than a traditional tool would cost. RTV works wonderfully for insert molding or over molding.

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